Orangutans hunting other primates is extremely rare behavior, scientists say.
Steve Irwin died 15 years ago after being struck by a stingray while filming in the Great Barrier Reef.
Some fans said the great ape reminded them of Sir Elton John after donning the shades.
The video is still circling the internet, despite being removed from YouTube.
Learn what it takes to get a good grade at the Orangutan Jungle School.
The orangutan is said to be in a stable condition after undergoing surgery to have three bullets removed.
Traditionally, scientists thought Australopithecus' larger brain size meant it was smarter than modern great apes, but new research suggests that assumption is wrong.
"Florida woman" stories will now include a 33-year-old orangutan named Sandra who was granted legal personhood in 2015 and recently moved to Florida.
The mother and son finally get to return home.
"Deforestation has caused the orangutan population to plummet; habitats are destroyed and orangutans are left to starve and die."
Large predators hunting in habitats where humans pushed them out are no longer anomalous, according to scientists.
Some refer to the zoo as a "death zoo" because of reportedly unsanitary conditions and alarming treatment.
Breeding endangered animals is part of a zoo's "species surival plan."